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Why are function pointers and data pointers incompatible in C/C++?
...function pointer is attempted as in:
fptr = (int (*)(int))dlsym(handle, "my_function");
Due to the problem noted here, a future version may either add a new function to return function pointers, or the current interface may be deprecated in favor of two new functions: one that returns data p...
How to instantiate non static inner class within a static method?
...e to have a reference to the other outer class as well.
Inner inner = new MyClass().new Inner();
If Inner was static then it would be
Inner inner = new MyClass.Inner();
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is_file or file_exists in PHP
..._exists() is slightly faster for me. So I guess it depends on the server.
My test benchmark:
benchmark('is_file');
benchmark('file_exists');
benchmark('is_readable');
function benchmark($funcName) {
$numCycles = 10000;
$time_start = microtime(true);
for ($i = 0; $i < $numCycles; ...
What is the purpose of the '@' symbol in CSS?
...ed and which aren't based on what media the page is being displayed in. In my code example, only when printing a document should all text be set in black against a white (the paper) background. You can use media queries to filter out print media, mobile devices and so on, and style pages differently...
How does numpy.histogram() work?
...p.histogram(iris_setosa['petal_length'], bins=10, density = True) gives me my counts in floating values, according to the example you have given how can count can be a floating value?
– Dipen Gajjar
Oct 12 '19 at 13:04
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How to use regex in String.contains() method in Java
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if need to match ".mydomain." in string. then how would it update the regex. My use case is whether "www.abc.mydomain.in.io" containing the .mydomain. or not
– Manmohan Soni
Jun 17 '19 at 13:29
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CSRF protection with CORS Origin header vs. CSRF token
...44 You could fallback to checking the "Referer" header in this case but in my experience some Firefox users block the "Referer" header because of privacy concerns (although IMHO it would be enough to strip the path and query).
– Steffen
Jan 5 '17 at 18:44
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How do I get a Cron like scheduler in Python? [closed]
... the job? I'd like to do something like this: schedule.every().hour.do(job(myParam))
– Zen Skunkworx
Jun 18 '16 at 17:55
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Are there any downsides to passing structs by value in C, rather than passing a pointer?
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@dkagedal: True. In retrospect, I think my own answer was written very poorly. Although I didn't focus on number of instructions very much (dunno what gave you that impression :P), the actual point to make was that passing struct by value is preferable to passing b...
Timeout command on Mac OS X?
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On my side after installed coerutils I got timeout available as time out: ln -s /usr/local/bin/gtimeout /usr/local/bin/timeout ln: /usr/local/bin/timeout: File exists
– talsibony
Sep 10 at ...